Tension Question !

Ok, I already posted this a few days ago but im bringing it back because i dont quite understand

a man sits in a bosuns chair that dangles from a massless rope, which runs over a massless frictionless pulley, and back down to the mans hand. The combined mass of the man and the chair is 95Kg. with what force must the man pull on the rope to rise with a constant velocity

so..
T=-mg/2

T = 465.5N
this doesnt make sense because if he is to rise any amount, he would have to exert more force that gravity does..Wouldnt he?

No, you were right at the beginning. The net force acting on the man + chair is 2T. The man only has to exert a force of T. The problem is supposed to show you the mechanical advantage of using a pulley.